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Aswan High Dam
Location: Egypt
Operator: Hydro Plants Electricity Production Co
Configuration: 12 X 175 MW Francis
Operation: 1967-1971
T/G supplier: LMZ, Voith, Electrosila
EPC: Hydropower Institute, Dnepr-Spetsgydroenergomontazh
Quick facts: The High Dam is up to 111m high and it is almost
1,000m long. Construction began in 1960 and one third of the total cost
(estimated to be over $1bn) was provided by the Soviet Union: 400 Soviet
engineers were used on the job. In July 2003, LMZ and Voith Siemens
Hydro were awarded a contract for the reconstruction of the 12
generators, a program expected to last six years. The €85-million
program is funded by KfW. Lake Nasser, the multipurpose reservoir behing
the dam, is about 565 km long. In areas now partially inundated were temples built by
Egyptian pharaoh Ramses II around 1200 BC. During the construction of
the High Dam, some of the temples were moved -- a unique and difficult
job -- but other monuments were submerged causing worldwide comment.
Photograph copyright by and courtesy of Ioan Triponescu
Posted 2 Jun 2004 |
Jebel Aulia
Location: Sudan
Operator: National Electricity Corp
Configuration: 30.4 MW matrix turbines
Operation: 2004-2005
T/G supplier: VA TECH, Elin
EPC: VA TECH
Quick facts: The Jebel Aulia dam was built from 1933-37 for irrigation
and flood control. The site is on the White Nile 40km south of Khartoum.
The dam is 5km in length with the highest head measuring 22m. The matrix
turbine installation consists of 80 individual turbine units, divided
into 8 groups, each with 10 turbines arranged in modules of two turbines
each.Photograph courtesy of National Electricity Corp
Posted 3 Jul 2010 |
Khasm El Girba-2 Rebuild
Location: Sudan
Operator: National Electricity Corp
Configuration: 2 X 3.9 MW Kaplan
Operation: 1964
T/G supplier: Ansaldo
EPC: Enelpower
Photograph courtesy of Enel SpA
Posted 15 Feb 2004
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Merowe Dam
Location: Sudan
Operator: Ministry of Irrigation and Water Resource
Configuration: 10 X 125 MW Francis
Operation: 2009-2010
T/G supplier: Alstom
EPC: China International Water & Electric Corp, Sinohydro Corp, Harbin
Power Engineering Co, Jilin Province Transmission and Substation Project
Co, Lahmeyer International
Quick facts: During its implementation, this was the largest hydro construction project in
Africa and it was China’s largest overseas electricity project to date.
The scheme is at the Nile’s Fourth Cataract and has a 60m concrete dam approximately 520m long
supported by rock- and earthfill dams on either side stretching 11km in
total. In Aug 2001, the Arab Fund for Economic and Social
Development, and other development funds in Abu Dhabi, Kuwait, Oman, and
Saudi Arabia pledged a total of €560mn to the Merowe project. The China
Import Export Bank later added €240mn with the Sudanese government
expected to make up the balance for the €1.2bn project. Resettlement was
required for up to 70,000 people affected by dam and reservoir
construction. A 400km, 500kV transmission line runs from the site to
a new 220kV substation at Khartoum. Construction started in Jun 2003.The first two units went commercial
in Mar 2009 and the last unit was commissioned by
President Omer Al-Bashir in May 2010.
Photograph courtesy of China Intl Water & Electric Corp
Re-posted 19 Jul 2009 |
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Naga Hammadi
Location: Egypt
Operator: Hydro Plants Electricity Production Co
Configuration: 4 X 16 MW bulb
Operation: 2008
T/G supplier: VA Tech
EPC: Lahmeyer, Orascom Construction, Vinici, Bilfinger-Berger
Quick facts: The 330m long dam
at Naga Hammadi in Upper Egypt replaces a structure built between 1927
and 1930. The seven-gate dam raises up to 8m for irrigation and
hydroelectric power. The £445 project included a 1.1km canal and a 23km,
220kV line to connect to the grid.
Photograph courtesy of DSD Noell
Posted 29 Aug 2009 |
